Non-Zero Y-Axis for charts

### Problem description

Is there a way to generate Graylog charts with non-zero y axis?
We're trying to chart some data, where all values are > 25,000 but the delta is small (+/- few hundred)
and the chart looks almost flat, because Y-Axis is always starts at zero.

Is it possible to set it to non-zero?
Would be great also if the minimum value can automatically be picked up as Y-axis baseline.
If yes how? if no, would you consider adding this as a feature in a future release?
### Steps to reproduce the problem

Chart a field that has values like this.
25000, 25056, 25002, 25102, 25044
### Environment
- Graylog Version: 1.3.2 AWS Image

Thanks